one of the best books you'll ever read!
TBB 4 has quite alot of updates from TBB1. interesting parts in TBB2 are the chapters about board bows, steambending/recurves, and broadheads (for hunters). TBB3 is great with the info about all different kinds of bows, TBB1 is the basis for these books. TBB4 teaches you how to get the best performing bows. Enjoy the read!!
and I agree with Pat. Start with the bent stick. Haven't read hunting the osage bow yet :s
goodluck!
Nick